Miller XR-A AlumaPro Plus 15 ft, Owner'S Manual

Page: 17 / 36

OM-245892 Page 13
6-3. Shielding Gas
Ref. 151 666-F / 804 545-B
1 Shielding Gas Cylinder
2 Valve
3 Gun Trigger
Open valve on cylinder just before
welding.
Gun trigger turns weld output and
gas flow on and off (see Section
6-1).
Close valve on cylinder when
finished welding.
3
1
2
6-4. Coolant Supply For Water-Cooled Models Only
Ref. 150 755-A
.
Do not loosen head tube with
cooler running.
1 Coolant Supply
2 Coolant “In”
3 Coolant “Out”
See table below for coolant
guidelines.
Turn On coolant supply before
welding.
Turn Off coolant supply when
finished welding.
1
MILLER Aluminum Protecting
Coolant No. 043 809*;
Distilled Or Deionized Water OK
Above 32
°
F (0
°
C)
GMAW Or Where Coolant
Contacts Aluminum Parts Or
Where HF* Not Used
Application
*MILLER coolants protect to -37
°
F (-38
°
C) and resist algae growth.
Coolant
3
2
Requirement of Coolant Supply
Water-Cooled Models Only
Minimum flow rate: 0.13 G/min (0.5 L/min)
Minimum inlet pressure: 40 psi (276 kPa)
Maximum inlet pressure: 70 psi (483 kPa)
Minimum cooling power: 1000 Watt (3410 BTU/hr)